
48
The device is not switching on
automatically when immersed in
water.
Pressure sensor gap filled with dirt or
mud.
Wash the device using a mild stream
of warm fresh water, until the
problem is gone.
External sensor is connected, but no
speed is shown.
Sensor connector misfit, broken or
rusted.
Disconnect the sensor plug, wash
and/or clean the connector, connect
it again.
The device is switched do INERTIAL
operation.
Go to Settings / Log/Speed, and
make sure EXT is set to ‘Active Log’.
Compass is showing improper
heading.
Calibration required.
Perform the calibration as described
in chapter 13.1 and 13.2
Strong external magnetic field near
the device.
Try to remove the magnetic and
ferromagnetic elements from the
vicinity of the navigation device.
Move the navigation device to
another location.
Defective sensor
Return the device for service.
Note
Recommended intervals to re-check the required accuracy of the product - 36 months from the
date of purchase and the next every 24 months.
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